NHKとけい is an iPhone app developed by NHK Japan Broadcasting Corp. This free app falls under the Utilities & Tools category and brings back the nostalgic NHK clock that used to inform viewers of the time on TV screens. Along with the clock, the app also features an hourly chime function that plays the familiar tune. Users have the option to choose from three different clock designs, adding a personal touch to their timekeeping experience.

With NHKとけい, users can enjoy the company of local mascot characters from various regions across Japan. These adorable characters accompany the clock and add a touch of charm to the app. NHKとけい is a simple yet delightful app that brings back memories of the past while providing a useful timekeeping tool for iPhone users.